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28450582479 = 3411435314011
BaseRepresentation
bin11010011111110010…
…010110111111001111
32201102202210100010000
4122133302112333033
5431231322114404
621023042415343
72025013650414
oct323762267717
981382710100
1028450582479
111107a680790
125620061553
1328b538c8b7
14153c76010b
15b17abc339
hex69fc96fcf

28450582479 has 80 divisors (see below), whose sum is σ = 48340727424. Its totient is φ = 16522833600.

The previous prime is 28450582421. The next prime is 28450582483. The reversal of 28450582479 is 97428505482.

28450582479 is a `hidden beast` number, since 2 + 8 + 4 + 50 + 582 + 4 + 7 + 9 = 666.

It is not a de Polignac number, because 28450582479 - 224 = 28433805263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28450582499) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2023584 + ... + 2037594.

Almost surely, 228450582479 is an apocalyptic number.

28450582479 is a deficient number, since it is larger than the sum of its proper divisors (19890144945).

28450582479 is a wasteful number, since it uses less digits than its factorization.

28450582479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14130 (or 14121 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 28450582479 in words is "twenty-eight billion, four hundred fifty million, five hundred eighty-two thousand, four hundred seventy-nine".

Divisors: 1 3 9 11 27 33 43 53 81 99 129 159 297 387 473 477 583 891 1161 1419 1431 1749 2279 3483 4257 4293 5247 6837 12771 14011 15741 20511 25069 38313 42033 47223 61533 75207 126099 154121 184599 225621 378297 462363 602473 676863 742583 1134891 1387089 1807419 2030589 2227749 4161267 5422257 6627203 6683247 8168413 12483801 16266771 19881609 20049741 24505239 31931069 48800313 59644827 60149223 73515717 95793207 178934481 220547151 287379621 351241759 536803443 661641453 862138863 1053725277 2586416589 3161175831 9483527493 28450582479